Mixing and supercharging device for internal-combustion engines



Jan.24, 1928.

R. B. WOODCOCK MIXING AND SUPERCHARGING DEVICE FOR INTERNAL COMBUSTIONENGINES Filed Aug. 10. 1925 FeoM CA Q5 ueerzle snow ke p Roy 5n/oopcocK. v

Patented Jan. 24, 1928.

UNITED STATES PATENT Ol 'FI Clzl.

ROY B. WOODCOCK, OF WINNIPEG, MANITOBA, CANADA.

MIXING AND SUPERCHARGING DEVICE FOR INTERNAL-COMBUSTION ENGINES.

Application filed. August 10, 1925. Serial No. 49,494.

.My invention relates to a mixing and supercharging device for internalcombustion engines, and the objects of my invention are: first, toprovide a simple and economically constructed means for drawing fuelfrom a carburetor, thoroughly mixing the sameand forcing thesame atgreat pressure into the cylindersof an internal combustion engine;second, to provide a means of this class which may be readily installedon internal combustion engines now in use; third, to provide a novellyconstructed propelling means for the fuel gases from a carbureter andforcing the same under pressure into the cylinders of an internalcombustion engine; fourth, to provide a novel turbine means foractuating the engine supercharger; fifth, to provide a means of thisclass whereby the cylinders of the engine may be supercharged beforestarting the engine; sixth, to provide a novelly constructed means fordrawing gases from a conductor and compressing the same, and seventh, toprovide a means of this class which is particularly simple andeconomical of construc tion, durable, efiicient, and which will notreadily deteriorate or get out of order.

With these and other objects in view, as will appear hereinafter, myinvention consists of certain novel features of construction,combination arid arrangement of parts and .portions, as will behereinafter described in detail and particularly set forth in theappended claims, reference being had to the accompanying drawings and tothe characters of reference thereon, which form a part of thisapplication, in which: Figure 1 is a partial side elevational view andpartial sectional view of my internal combustion engine fuel mixing andsupercharging means connected to the discharge end or duct of a.carbureter and with the intake end ofthe intake manifold of the engineand showing the turbine for actuating the same connected with a fluidpressure tank, shown fragmentarily, the sectional portion of the viewbeing taken through 11 of Fig. 2; Fig 2 is a transverse sectional viewthereof on a reduced scale, taken through 2-2 of Fig. 1, showing thecompressor portion of my means connected with the intake manifold, shownalso in section, and Fig. '3 is an end elevational view of the fluidactuated turbine, shown on a reduced scale, showing certain parts andportions thereof broken away and in section to facilitate theillustration.

Like characters of reference refer to similar parts and portionsthroughout the several views of the drawings.

The main casing of my means, indicated by 1, consists of afrusto-conical casing portion 1, which merges at its enlarged end into acylindrical portion 1". The. small end of the frusto-conical casingportion 1 is connected to the discharge end or duct 2 of a carbureter,shown fragmentarily, or any other fuel conductor. The cylindricalportion 1 of the casing is provided with a tubular discharge passage orduct 1 which is connected tangentially with thecasing portion 1", asshown best in Fig. 2. -This tu' bular discharge passage or duct 1 may beconnected with the intake manifold 3, as shown in Fig. 2 of thedrawings, or may be directly connected with the intake port of aninternal combustion engine cylinder.

In the frusto-conical portion 1 of the casing 1 is positioned afrusto-conically shaped propelling member 4, which consists of :1 hub 4and a plurality'of blades or vanes 4 arranged helically around andsupported by the hub 4*. It will be noted that the pitch of the vanes 1near the enlarged end of the propelling member 4 is preferably less thanthat at the smaller end to .concentrate to a certain extent only for theenlarging of the one end thereof, the cross-sectionalarea be tween thevanes at the enlarged end of the member 4 being still retained greaterthan at the opposite end to provide for greater rarification of thegases at the enlarged end of the member 4 so as to facilitate thedrawing of the gases from the carbureter or duct 2. The ,fuel gasespassing at high velocity through the propelling member 4 and impingingag'ainst the vanes thereof cause com plete breaking up of the fuel andthe thorough mixing thereof with the air or other oxygenizing agent.

The hub portion of the member 4 is mounted on and secured to a shaft 5,which is revolubly mounted in ball bearings and 7, the formerbeingjsupported at the middle portion of a skeleton frame or spider 8near the small end of the casing 1, as shown in Fig. 1. The other ballbearing is supported at and by the end wall at the enlarged end of thecasing 1. On the shaft 5, be-

yond the large end of the propell ng memher 4, is mounted a fan orcompressor mem her 9, which is also secured to the shaft 5. This fan orcompressor member 9 1s provided with a plurality of outwardly radispentgases.

iii

'- engine and derives its ating vanes or blades 9*, which extend closeto the end wall and the cylindrical wall of the casing 1.

The turbine for rotating the shaft 5 consists of a casing 10, preferablysecured to the enlarged end of the casing 1, and a rotor 11 secured tothe outer end of the shaft 5 and revolubly mounted within the casing 10.Fluid under pressure is directed a ainst the blades of the rotor 11 bymeans 0 a nozzle 12 tangentially connected with the casing 10. Saidcasing is also provided with a discharge conductor 15 for the exhaust ofthe The. nozzle 12 is connected with a pressure tank 13, there beingprovided a regulating valve 14 in the conductor connecting said tankwith said nozzle for controlling the flow of fluid to the latter. Thetank 13 is connected with one or two cylinders of the same internalcombustion s under pressure (firom the burnt gases o the engine cyliners.

It will be noted that the propeller member 4' is adapted for mixing andrarefying the fuel gases and the fan 9. is primarily adapted forcompressin the gasses for supercharging the engine,%ut also aids infurther mixing the fuel with the air.

.It will be noted that with asupercharger of this construction, thecylinders of the engine may be supercharged with fuel gases be foreactually starting the engine by opening the valve 14 to the pressuretank 13 and turningthe engine with the starter; thus the supercharginoperation is not dependent directly upon t e operation of the engine.

Though I have shown and described a particular construction, combinationand arrangement of parts and portions, I do not wish to be limited tothis particular construction, combination and arrangement, but desire toinclude in the scope of my invention, the construction, combination andarrangement substantially as set forth in the appended claims. I

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is: I

1. In a mixin and supercharging device for internal com ustion engines,a substantially frusto-conical casing open at its small I end andprovided with a discharge passage at its large end positionedtangentially therewith, a substantially frusto-conically shaped fluidpropelling member revolubly mounted in said casingand provided withsubstantially helically shaped vanes, and a of said propelling memberand revoluble therew th, said, compressor member being provided withvanes substantially parallel with its axis and radiating outwardlytherefrom adapted to discharge a-fiuid directly into said tangentiallypositioned discharge passage. 1

2. In a mixing and supercharging device for internal combustion engines,a substantially frusto-conically shaped casing provided with an inlet atits small end and an outward radiating discharge passage at its largeend, a substantially frusto-conically shaped fluid propelling memberrevolubly mounted in said casing and provided with substantiallyhelically shaped vanes, and a compressor member secured to the large endof said propelling member and revoluble therewith, said compressormember being provided with vanes substantially parallel with its axisand radiating outwardly therefrom adapted to discharge a fluid directlyinto said outwardly radiating discharge passage.

3. In a mixing and supercharging device for internal combustion engines,a casing consisting of a .frusto-conically shaped portion and acylindrical portion at the large end of said frusto-conically shapedportion, the small end of said frusto-conically shaped portion beingprovided with an axial opening and the cylindrical portion beingprovided with a discharge passage positioned tangentially therewith, anda fuel mixing and propelling member consisting of a subst-antiallyfrusto-conically shaped portion 1 sitioned discharge passage.

4. In a mixing and supercharging device for internal combustion engines,a casing consisting of a frusto-conically shaped portion and acylindrical portion at the large end of said frusto-conically shapedportion, the small end of said frusto-conically shaped portion beingprovided with an axial openinn ing and the cylindrical portionbeingprovided with a discharge passage positloncd.

tangentially therewith, a substantially frusto-conically shaped fluidmixing and propelling member provided with substantially helicallyshaped vanes revolubly mounted in the frusto-conically shaped portion ofsaid casing,'and a compressor member positioned in the cylindricalportion of said casing, rev oluble with said substantiallyfrusto-conicall shaped mixin and r0 llin m b compressor member securedto the large end y g P P g stantially in shape with the interior of thecylindrical ortion of said casin 5. In a evice of the class described amixing device comprisinga casing provided with a small end adapted to beconnected with the discharge ortion of a carbureter, and an enlar ed endadapted to be connected to the inta e of an engine, and a fuel mixingmember revolubly mounted in said casing and provided with substantiallyhelically shaped vanes, the cross-section of the spaces between thevanes at the large end of said casing being greater than thecorresponding cross-section of the spaces between the vanes at the smallend of the casing.

6. In a mixing and supercharging device for internal combustion engines,a casing provided with a small end ada ted to be connected with thedischarge portion of a carburetor, and an enlarged end adapted to beconnected to the intake of an engine, and a fuel mixing and compressingdevice revolubly mounted in said casing provided with substantiallyhelically shaped vanes, the crosssection of the spaces between the vanesat the large end of said casing being greater than the corres on'dingcross-section of the spaces between t e vanes at the small end of thecasing, and a compression fan secured in connection with the helicallyshaped vanes and positioned at and within the large end of the casingcommunicating with the intake manifold.

In testimony whereof, I have hereunto set my hand at Pryor, Oklahoma,this 5th day of August 1925.

ROY B. WOODCOCK.

